Identify the linear equation. A)
y = 4x
B)
y = x4
0)
y =
+ x
D
y = |x + 4|

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of